Watch out, MLB -- Mookie Betts' son took the field for the first pitch at the Dodgers game on Tuesday ... and he proved he's got skills just like his pops!!
The adorable moment happened before Los Angeles faced the Athletics ... which was also Betts' bobblehead night.
Betts' loved ones joined him on the diamond for his special night ... including two-year-old Kaj, who had the honor of throwing the ceremonial toss.
The tyke ran onto the field in excitement with his mom, Brianna, chasing after him .